<!DOCTYPE HTML>
<html lang="cn" xmlns:th="http://www.thymeleaf.org">
<head>
    <title>title</title>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
</head>
<body>
    <p>欢迎你, <span style="color: red" th:text="${username}"></span>!</p>
</body>
</html>